#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
class Solution {
public:
    void moveZeroes(vector<int>& nums)
    {
        int cur = 0, dest = -1;
        while (cur < nums.size())
        {
            if (nums[cur] != 0)
                swap(nums[cur], nums[++dest]);
            ++cur;
        }
    }
};